var buttonStartGame;

function startGame(){
	var spielfeld = document.getElementById("spielFeld");
	var form = document.getElementsByTagName("form");
	spielfeld.removeChild(form[0]);
	buttonStartGame = document.createElement("input");
	buttonStartGame.setAttribute("type", "button");
	buttonStartGame.setAttribute('value', 'Spiel starten');
	buttonStartGame.setAttribute("name", "login");
	buttonStartGame.setAttribute("id", "startGame");
	buttonStartGame.setAttribute("onclick", "eventStartGame();");
	spielfeld.appendChild(buttonStartGame);
}



